Bomb Defusal

Bomb Defusal mode, also known as "Bomb Scenario", is a game mode available in all games of the Counter-Strike series.

Bomb defusal is considered by the majority of the community to be the most popular and balanced game mode. For those reasons, it is usually the only game mode used for tournaments or other competitive matches, with all of the "Active Duty" map pool currently being defusal maps.

Plant the C4 explosive and run down its countdown without the Counter-Terrorists defusing it. The bomb timer lasts for 40 seconds (Global Offensive Competitive), 40 seconds (Global Offensive Casual), or 45 Seconds (Counter-Strike, Counter-Strike: Source). Additionally, in Counter-Strike: Source, server host can modify the timer by using command "mp_c4timer" in the console.

Eliminate all Counter-Terrorists

In Global Offensive, "Bomb Scenario" is one of the two "Classic" game modes, alongside with Hostage Scenario. Therefore, it is available in both Casual and Competitive rulesets.

Bomb defusal maps are prefixed with de_. Demolition maps also are prefixed with de_, but the two lists are mutually exclusive.

Gameplay

Counter-Terrorists can win the round by running down the timer before the bomb is planted, while the Terrorists must plant the bomb at one of two bombsites (usually located near Counter-Terrorist spawn) and ensure detonation of the explosive. The secondary objective, which also secures a victory for either team, is to eliminate all members of the opposing team (however, if the bomb is already planted and all Terrorists are eliminated the round does not end until the bomb is defused or detonated). If the round time expires and the C-4 is not planted, the Counter-Terrorists win by default.

The bomb can only be planted at a bombsite, of which there are two on every official map. In competitive mode, Counter-Terrorists may purchase a "defusal kit" that halves the time needed to defuse the bomb, taking 5 seconds instead of 10. While defusing, the player cannot reload weapons (in CS 1.6 and Condition Zero), underhand throw grenades, crouch, and switch fire modes otherwise, the defusal process must be restarted.

Achievements

Bomb

Blast Will and TestamentWin a round by picking up the bomb from a fallen comrade and successfully planting it.

Boomala BoomalaPlant 100 bombs.

ClusterstruckKill 5 players in a C4 blast.

Combat ReadyDefuse a bomb with a kit when it would have failed without one.

Counter-Counter-TerroristKill a CT while he is defusing the bomb.

Defusus InterruptusStop defusing to kill a terrorist and then successfully finish defusing the bomb.

Participation AwardKill an enemy player within 3 seconds of them recovering a dropped bomb.

Rite of First DefusalWin a round by defusing a bomb.

Second to NoneSuccessfully defuse a bomb with less than one second remaining.

Short FusePlant a bomb within 25 seconds.

Someone Set Up Us The BombWin a round by planting a bomb.

The Hurt BlockerDefuse 100 bombs.

Wild Gooseman ChaseAs the last living terrorist, distract a defuser long enough for the bomb to explode.

Team Tactics

Counter-Counter-TerroristKill a CT while he is defusing the bomb.

Defusus InterruptusStop defusing to kill a terrorist and then successfully finish defusing the bomb.

Participation AwardKill an enemy player within 3 seconds of them recovering a dropped bomb.

Rite of First DefusalWin a round by defusing a bomb.

Second to NoneSuccessfully defuse a bomb with less than one second remaining.

Short FusePlant a bomb within 25 seconds.

Someone Set Us Up The BombWin a round by planting a bomb.

The Hurt BlockerDefuse 100 bombs.

Wild Gooseman ChaseAs the last living terrorist, distract a defuser long enough for the bomb to explode.

Trivia

In the sound files of Counter-Strike, there are details about Bombsite C. However, no official map uses more than 2 Bomb sites (although Foption, a Beta map, contained three bombsites). In addition, bots in Counter-Strike: Condition Zero and Counter-Strike: Source have unused quotes mentioning a bombsite C (examples include "The bomb is ticking at (bombsite) C" and "(The) bomb's at (bombsite) C").